title: Human murine mammary tumour virus-like agents are genetically distinct from endogenous retroviruses and are not detectable in breast cancer cell lines or biopsies.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000818:Animals; D001706:Biopsy; D001943:Breast Neoplasms / Q000821:virology*; D045744:Cell Line, Tumor; D020077:Endogenous Retroviruses / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D005260:Female; D006801:Humans; D008324:Mammary Tumor Virus, Mouse / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D051379:Mice; D008875:Middle Aged; D008969:Molecular Sequence Data; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D017422:Sequence Analysis, DNA